Term
| B. It is like a magnetic field of a bar magnet |
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Definition
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Definition
| What type of magnet would represent the Earth´s magnetic field? |
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Term
permanent magnet has a fixed magnetic field strength but the magnetic field strength of an electromagnet can be changed
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Definition
| How do you compare a permanet magnet and an electromagnet? |
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Definition
What else do you need to build an electromagnet?
[image] |
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Term
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Definition
What is this device?
[image] |
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Term
| Coil the wire around the iron core (nail) and connect the wires to a battery. More coils=stronger electromagnet |
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Definition
| How do you make an electromagnet stronger? |
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Term
a magnet
You have to move the magnet back and forth inside the coil wire to produce electricity |
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Definition
| What can you put through a coil of wire to produce an electric currrent? |
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Term
| electricity (electric current) |
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Definition
| What is made when you move a bar magnet through a coiled wire? |
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Term
B. because because the light bulb is lighting up
(wrong answers A- the meter is not moving=no electric current, C- magnetic field lines not electricity, D The wires are not connected to the electromagnet=no electricity flowing through it) |
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Definition
Which one identifies an electric current being produced?
[image] |
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Term
| Move the magnet through the wire |
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Definition
| How could a student create electricity using a magnet on a string and a coil wire? |
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